A:AnswerI just plug mine in with extension chord so it can reach my head. I try to make sure and charge it every evening. Otherwise I would have bought wired.
A:AnswerThere is not a audio port on the Stealth 600 gen 2. The only port the Stealth 600 has is a type C port for charging. Although I am not sure of a Aux adapter for type c would transfer to audio for your elgato. I hope this helps.
A:AnswerMac/Apple is very finicky with what programs are compatible with its software. You might have to do some research on which wireless headsets works the best with Mac.
A:AnswerYou would need use use the Microsoft - Xbox Wireless Adapter for Windows 10
https://www.bestbuy.com/site/microsoft-xbox-wireless-adapter-for-windows-10-black/6253924.p?skuId=6253924